Triodos Bank

One of the most sustainable buildings in the world

The new office of Triodos Bank in Driebergen-Zeist is one of the most sustainable buildings in the world. This building had to be of a circular design where possible, energy neutral and had to blend in with the surrounding landscape. As the overall technical installer, Bosman Bedrijven was responsible for all the electrical, mechanical and sanitary systems during the construction of the building. This project was awarded the BREEAM Outstanding sustainability certificate.

Minimum energy consumption

Sustainability is paramount to Triodos Bank. It was an important condition for the design and the construction of the office and the corresponding systems. Therefore Bosman Bedrijven, as with most of the projects it is involved in, opted for the latest technologies, systems and installations that minimise energy consumption as much as possible.

Light control with sensors

In this building, Bosman Bedrijven fitted a decentralised DALI system. This system uses sensors to check whether a room is in use or not. The system also responds to sunlight. The more sunlight, the more the lights are turned down.

Energy generated with heat and cold storage

Central heat generation takes place by means of heat and cold storage with electrically driven heat pumps. The solar panels on the roof of the car park feed the pumps. Air systems produce a supply of one hundred percent fresh air; the air is not circulated.

Saving water and resources

The building also has water-saving facilities. The toilets use rainwater via a grey-water system. Apart from water savings, there were also savings on resources. Where possible, Bosman Bedrijven used fewer materials.

Aesthetically integrated ceilings

Another major challenge of this project was in the unusually designed ceilings. They needed to incorporate air ducts, light sensors, the evacuation system, and the sprinkler system. Bosman Bedrijven managed to solve this aesthetically within the confines of applicable legislation and regulations.

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